Cosmic bubble and domain wall instabilities I: parametric amplification of linear fluctuations

@article{Braden2014CosmicBA,
  title={Cosmic bubble and domain wall instabilities I: parametric amplification of linear fluctuations},
  author={Jonathan Braden and J. Richard Bond and Laura Mersini-Houghton},
  journal={arXiv: High Energy Physics - Theory},
  year={2014}
}
This is the first paper in a series where we study collisions of nucleated bubbles taking into account the effects of small initial (quantum) fluctuations in a fully 3+1-dimensional setting. In this paper, we consider the evolution of linear fluctuations around highly symmetric though inhomogeneous backgrounds. We demonstrate that a large degree of asymmetry develops over time from tiny fluctuations superposed upon planar and SO(2,1) symmetric backgrounds. These fluctuations arise from zero… 
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We study collisions between pairs of bubbles nucleated in an ambient false vacuum. For the first time, we include the effects of small initial (quantum) fluctuations around the instanton profiles
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